//
var as = function (name) {
    console.log("\u8FD9\u662F\u4F20\u5165\u7684\u53C2\u6570" + name);
};
as('100');
var obj = {
    "a": 123,
    'syhi': function () {
        var _this = this;
        setTimeout(function () {
            console.log(_this.a);
        }, 0);
    }
};
obj.syhi();
var a = 100;
var b = '字符串';
var c = true;
var e = undefined;
var f = null;
var g = undefined;
// const h:symbol=Symbol()  这是es6中的 所以会报错
